Home / 3,837.58-5,743.99-1,986.15

Finding the Fourth Proportional to 3,837.58, 5,743.99 and 1,986.15

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Solution

The fourth proportional to 3,837.58, 5,743.99 and 1,986.15 is: 2,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.58 : 5,743.99 = 1,986.15 : x
  2. Step 2: Convert to fraction form
    3,837.58/5,743.99 = 1,986.15/x
  3. Step 3: Cross multiply
    3,837.58x = 5,743.99 × 1,986.15
  4. Step 4: Simplify right side
    3,837.58x = 11,408,425.74
  5. Step 5: Solve for x
    x = 11,408,425.74/3,837.58
  6. Step 6: Final answer
    x = 2,972.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.